pbio/drv: Use wait for event in init loops.

We shouldn't be enforcing tight loops here. If drivers rely on it, they should request polling.

This makes event handling the same everywhere. Only MicroPython is allowed to drive pbio without waiting for events.

Author: laurensvalk

lib/pbio/drv/core.c

@@ -76,7 +76,7 @@ void pbdrv_init(void) {
     // Wait for all async pbdrv drivers to initialize before starting
     // higher level system processes.
     while (pbio_busy_count_busy()) {
-        pbio_os_run_processes_once();
+        pbio_os_run_processes_and_wait_for_event();
     }
 
     pbdrv_ioport_enable_vcc(true);
@@ -91,7 +91,7 @@ void pbdrv_deinit(void) {
     pbdrv_bluetooth_deinit();
 
     while (pbio_busy_count_busy()) {
-        pbio_os_run_processes_once();
+        pbio_os_run_processes_and_wait_for_event();
     }
 
 }

lib/pbio/sys/core.c

@@ -78,7 +78,7 @@ void pbsys_init(void) {
     pbio_os_process_start(&pbsys_system_poll_process, pbsys_system_poll_process_thread, NULL);
 
     while (pbio_busy_count_busy()) {
-        pbio_os_run_processes_once();
+        pbio_os_run_processes_and_wait_for_event();
     }
 }
 
@@ -94,6 +94,6 @@ void pbsys_deinit(void) {
     // Wait for all relevant pbsys processes to end, but at least 500 ms so we
     // see a shutdown animation even if the button is released sooner.
     while (pbio_busy_count_busy() || pbdrv_clock_get_ms() - start < 500) {
-        pbio_os_run_processes_once();
+        pbio_os_run_processes_and_wait_for_event();
     }
 }